This Ain’t Rocket Science … CS 5540 HCI Rich Riesenfeld Fall 2007 CS 5540 HCI Rich Riesenfeld Fall 2007

2 Click Rule Any item should be accessible in “2 clicks” Problems -If there are many items, then the menu list gets VERY long! -If the tree is more structured, some items will get buried deeper -Can us dynamic structure (a la MS) Any item should be accessible in “2 clicks” Problems -If there are many items, then the menu list gets VERY long! -If the tree is more structured, some items will get buried deeper -Can us dynamic structure (a la MS)

2 Click Rule

Modes Modes – the same action means some different depending on the “mode” -Many examples abound Modes are likely to be confusing Modes – the same action means some different depending on the “mode” -Many examples abound Modes are likely to be confusing

Modes Digital alarm clock: Time v Alarm Car stereo: Treble-Bass, Lt-Rt, Fr-Back Emacs Various finite state machines Computers Automobile controls Remote for TV-CD-VCR Digital alarm clock: Time v Alarm Car stereo: Treble-Bass, Lt-Rt, Fr-Back Emacs Various finite state machines Computers Automobile controls Remote for TV-CD-VCR

Modes What mode am I in? -Should always be able to answer Maintain analogies (parallelisms) -Similar actions produce analogous functions in various modes  Examples ??  This is a kind of consistency, really What mode am I in? -Should always be able to answer Maintain analogies (parallelisms) -Similar actions produce analogous functions in various modes  Examples ??  This is a kind of consistency, really

Smart (non-dumb!) Interfaces Who is the user? -Does the interface behave differently depending on the user? -Is it customizable? -Does it remember things? Does it comes up in unexpected modes? Who is the user? -Does the interface behave differently depending on the user? -Is it customizable? -Does it remember things? Does it comes up in unexpected modes?

Smart (non-dumb!) Interfaces Recall context from previous sessions? -Restore windows and pgms? -Allow easy return to “state” ? Tactfully, alert against and resist nonsense inputs -Not allowed to do that … maybe you want to do this… Recall context from previous sessions? -Restore windows and pgms? -Allow easy return to “state” ? Tactfully, alert against and resist nonsense inputs -Not allowed to do that … maybe you want to do this…

Smart (non-dumb!) Interfaces Does it prompt? Anticipate? Does it annoy, get in the way, give unhelpful, distracting msg’s? (paperclip) The user’s efforts should be respected ! -Offer typical choices? -Do a GOOD MS Paperclip! Does it prompt? Anticipate? Does it annoy, get in the way, give unhelpful, distracting msg’s? (paperclip) The user’s efforts should be respected ! -Offer typical choices? -Do a GOOD MS Paperclip!

Smart (non-dumb!) Interfaces Does it sense and react to the environment? -Dim lights when light is low? -“Talk” louder when environment is noisy. -Fast and slow digital counters, etc. -Generate resistance to mistakes  Avoiding multiple clicks… (my office phone)  Stuff like that… Does it sense and react to the environment? -Dim lights when light is low? -“Talk” louder when environment is noisy. -Fast and slow digital counters, etc. -Generate resistance to mistakes  Avoiding multiple clicks… (my office phone)  Stuff like that…

Smart (non-dumb!) Interfaces Be responsive to inputs! -Departure date is AFTER arrv date, so advance it on input -Present a good choice for first guess. Today’s date, not 1 Jan, etc.. -Other examples?? Be responsive to inputs! -Departure date is AFTER arrv date, so advance it on input -Present a good choice for first guess. Today’s date, not 1 Jan, etc.. -Other examples??

Smart (non-dumb!) Interfaces Good defaults -Nonsmoking hotel room -Aisle seat, when available -Table apart from noisy group Profiles, histories, data gathering “Having your usual, madam?” -Quick select, speed dialing, -Don’t require repeated input of same info Good defaults -Nonsmoking hotel room -Aisle seat, when available -Table apart from noisy group Profiles, histories, data gathering “Having your usual, madam?” -Quick select, speed dialing, -Don’t require repeated input of same info

Smart (non-dumb!) Interfaces Assist with available “knowledge” -Spell checker, style checker -Color choices -Formats, templates, etc -Style critique Don’t be lazy; pamper the user. Assist with available “knowledge” -Spell checker, style checker -Color choices -Formats, templates, etc -Style critique Don’t be lazy; pamper the user.

Smart (non-dumb!) Interfaces Assist with “knowledge” -Pharmacy: patient drug interactions -Automobile guides: Neverlost  “Hey, my map says that this is a one-way. Achtung!” – Why doesn’t it do this? -Cannot lock key in ignition, etc. -Cannot leave car in Drive Others? Assist with “knowledge” -Pharmacy: patient drug interactions -Automobile guides: Neverlost  “Hey, my map says that this is a one-way. Achtung!” – Why doesn’t it do this? -Cannot lock key in ignition, etc. -Cannot leave car in Drive Others?

Smart (non-dumb!) Interfaces Narrow choices: Car Radio, eg -Scan for next  Jazz, Country, News, Sports, Spanish -Restaurants by locale, type, cost, etc -Movies by genre, and the like  Action, Drama, Documentary, Foreign, etc -Local Google Search Narrow choices: Car Radio, eg -Scan for next  Jazz, Country, News, Sports, Spanish -Restaurants by locale, type, cost, etc -Movies by genre, and the like  Action, Drama, Documentary, Foreign, etc -Local Google Search

Smart (non-dumb!) Interfaces UI should TRY to figure out problem, and try to solve it -Too easy to just complain, then  Core dump  Bail  Force user to start process over UI should TRY to figure out problem, and try to solve it -Too easy to just complain, then  Core dump  Bail  Force user to start process over

Smart (non-dumb!) Interfaces UI should TRY to figure out problem, and try to solve it -It may know the problem, and be able to fix it, or guide the user to easily fix it  Matching parens, eg  It looks as though… May I fix this?  Use “back pointers” to maintain correctness. Filters and mailboxes in Eudora. Hey! UI should TRY to figure out problem, and try to solve it -It may know the problem, and be able to fix it, or guide the user to easily fix it  Matching parens, eg  It looks as though… May I fix this?  Use “back pointers” to maintain correctness. Filters and mailboxes in Eudora. Hey!

Smart (non-dumb!) Interfaces Guide user through tasks -What next? -Where am I in the grand scheme?  Does questionnaire tell you how much left?  Should I quickly finish, or break here? -Offer good defaults -Give stats on choices  90% of users do this -> Guide user through tasks -What next? -Where am I in the grand scheme?  Does questionnaire tell you how much left?  Should I quickly finish, or break here? -Offer good defaults -Give stats on choices  90% of users do this ->

Smart (non-dumb!) Interfaces Example – 4 wheel steering -Slow behavior (radical turns) -Fast behavior (gentle turns) -Forward v. Backward ?? Automatic trans, another example -Using context for smart, autonomous behavior Anti-skid, anti-lock, etc. -Takes control, and does what is needed Example – 4 wheel steering -Slow behavior (radical turns) -Fast behavior (gentle turns) -Forward v. Backward ?? Automatic trans, another example -Using context for smart, autonomous behavior Anti-skid, anti-lock, etc. -Takes control, and does what is needed

Smart (non-dumb!) Interfaces Be responsive to inputs! -Departure date is AFTER arrv date, so advance it on input -Present a good choice for first guess. Today’s date, not 1 Jan, etc.. -Other examples?? Be responsive to inputs! -Departure date is AFTER arrv date, so advance it on input -Present a good choice for first guess. Today’s date, not 1 Jan, etc.. -Other examples??

Smart (non-dumb!) Interfaces Good defaults -Nonsmoking hotel room -Aisle seat, when available -Table apart from noisy group Profiles, histories, data gathering “Having your usual, madam?” -Quick select, speed dialing, -Don’t require repeated input of same info Good defaults -Nonsmoking hotel room -Aisle seat, when available -Table apart from noisy group Profiles, histories, data gathering “Having your usual, madam?” -Quick select, speed dialing, -Don’t require repeated input of same info

Smart (non-dumb!) Interfaces Assist with available “knowledge” -Spell checker, style checker -Color choices -Formats, templates, etc -Style critique Don’t be lazy; pamper the user. Assist with available “knowledge” -Spell checker, style checker -Color choices -Formats, templates, etc -Style critique Don’t be lazy; pamper the user.

Smart (non-dumb!) Interfaces Assist with “knowledge” -Pharmacy: patient drug interactions -Automobile guides: Neverlost  “Hey, my map says that this is a one-way. Achtung!” – Why doesn’t it do this? -Cannot lock key in ignition, etc. -Cannot leave car in Drive Others? Assist with “knowledge” -Pharmacy: patient drug interactions -Automobile guides: Neverlost  “Hey, my map says that this is a one-way. Achtung!” – Why doesn’t it do this? -Cannot lock key in ignition, etc. -Cannot leave car in Drive Others?

Smart (non-dumb!) Interfaces Narrow choices: Car Radio, eg -Scan for next  Jazz, Country, News, Sports, Spanish -Restaurants by locale, type, cost, etc -Movies by genre, and the like  Action, Drama, Documentary, Foreign, etc -Local Google Search Narrow choices: Car Radio, eg -Scan for next  Jazz, Country, News, Sports, Spanish -Restaurants by locale, type, cost, etc -Movies by genre, and the like  Action, Drama, Documentary, Foreign, etc -Local Google Search

Smart (non-dumb!) Interfaces Example – 4 wheel steering -Slow behavior (radical turns) -Fast behavior (gentle turns) -Forward v. Backward ?? Automatic trans, another example -Using context for smart, autonomous behavior Anti-skid, anti-lock, etc. -Takes control, and does what is needed Example – 4 wheel steering -Slow behavior (radical turns) -Fast behavior (gentle turns) -Forward v. Backward ?? Automatic trans, another example -Using context for smart, autonomous behavior Anti-skid, anti-lock, etc. -Takes control, and does what is needed

Student Name Server Utah School of Computing slide 27 Fall 2003 Standard Card Lock

Student Name Server Utah School of Computing slide 28 Fall 2003 Delayed Card Lock Locks automatically after 2 min Locks immediately if done manually Locks automatically after 2 min Locks immediately if done manually

4 wheel steering 2- wheel steering 4-wheel -Low speed 4-wheel -High speed 2- wheel steering 4-wheel -Low speed 4-wheel -High speed

2 wheel steering – all speeds

4 wheel steering – low speed

4 wheel steering – high speed

Smart (non-dumb!) Interfaces Security -When to help with password? -Providing info to wrong user? How prudent, how circumspect is appropriate? -Video game, medical records, replace passport, info on grades, etc. Security -When to help with password? -Providing info to wrong user? How prudent, how circumspect is appropriate? -Video game, medical records, replace passport, info on grades, etc.

Smart (non-dumb!) Interfaces UI should act as an assistant, or even an associate -Know the user: I like coffee in the morning -Watch activities, learn, remember -Help out: special terms, abbrev’s, etc -Guard against mistakes: force feed-back -Offer comfortable advice and assistance  “Think along. Know the art of helping! UI should act as an assistant, or even an associate -Know the user: I like coffee in the morning -Watch activities, learn, remember -Help out: special terms, abbrev’s, etc -Guard against mistakes: force feed-back -Offer comfortable advice and assistance  “Think along. Know the art of helping!

Smart (non-dumb!) Interfaces UI should act as an assistant -Think along, understand what is going on -Be friendly, not demeaning -Communicate in effective, straightforward terms, not “geekspeak” -Unobtrusively refer to explanations (clickable, etc) for technical items, background UI should act as an assistant -Think along, understand what is going on -Be friendly, not demeaning -Communicate in effective, straightforward terms, not “geekspeak” -Unobtrusively refer to explanations (clickable, etc) for technical items, background

Smart (non-dumb!) Interfaces Beaucoup sensors -Temp, pressure, cameras, gaze, etc., etc., Beaucoup processors -Ids, DBs, agents, … Continuous, immersive involvement Beaucoup sensors -Temp, pressure, cameras, gaze, etc., etc., Beaucoup processors -Ids, DBs, agents, … Continuous, immersive involvement

Smart (non-dumb!) Interfaces Speech input -Talk to UI -UI talks to User -Shneiderman doubts its potential, however Gestures Speech input -Talk to UI -UI talks to User -Shneiderman doubts its potential, however Gestures

Smart (non-dumb!) Interfaces Eliminate the 3-handed interface -Keyboard + mouse (impossible situation, really) -2 hands plus voice? Another kind of input? Eliminate the 3-handed interface -Keyboard + mouse (impossible situation, really) -2 hands plus voice? Another kind of input?

Topics for Future Ergonomics Psychological aspect, Smart interfaces / AI Building interfaces -Designing interfaces -Testing -Throwing out inadequate ones Ergonomics Psychological aspect, Smart interfaces / AI Building interfaces -Designing interfaces -Testing -Throwing out inadequate ones

Conclusions This is not so easy to figure out This IS hard to do -Takes much work, actually -UI is expensive, labor intensive Have not begun to talk about real AI, just “ HI ”! This is not so easy to figure out This IS hard to do -Takes much work, actually -UI is expensive, labor intensive Have not begun to talk about real AI, just “ HI ”!

End This Ain’t Rocket Science…

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